So I'm reading through Introductory Algebra for College Students and in one of the side notes the author has a question am I allowed to 'flip' the sides of an equation. Assuming a and b are real. If $a = b$ then $b=a$.
I'm having trouble with this statement... Can you flip the left hand side and right hand side as long as you keep the numbers in the same order?
Can anyone find some examples that might help me wrap my head around this? Visual explanations are appreciated